CAMRT Radiography Practice Exam

The Seldinger Technique is the established method for safely introducing a catheter and guide wire into a blood vessel. This technique, developed by Dr. Sven-Ivar Seldinger, involves several key steps that help minimize complications and improve the accuracy of catheter placement.

Initially, a needle is used to puncture the blood vessel, and once appropriate blood return is confirmed, a guide wire is then threaded through the needle into the vessel. The needle is subsequently removed, leaving the guide wire in place. Following this, a catheter can be advanced over the guide wire into the vessel. This method provides a controlled way to access blood vessels, reducing the risk of damaging surrounding tissue and allowing for more complex procedures to be performed safely.

The other methods listed serve different purposes and are not specifically designed for the introduction of a catheter and guide wire into blood vessels. The Heimlich Maneuver is a first aid procedure for choking, the radial approach refers to accessing blood vessels via the radial artery, and venipuncture is a technique for drawing blood or starting intravenous lines, but it does not specifically involve the use of guide wires or catheters in the same way as the Seldinger Technique.